This much we know: On most days, "Wilson SS" will be written on the Mariners' lineup card.

The question is, which Wilson?

According to the Seattle Times , Jack Wilson will be activated from the disabled list Sunday, apparently sufficiently recovered from a hamstring problem that has limited him to 26 games this season. Playing in his place while he was gone: Josh Wilson.

It's an unwritten sports rule, or at least a common practice, that a starting player can't lose his spot just because of an injury. Josh Wilson, however, has made himself awfully difficult to take out of the lineup. He's batting .288, the highest among Mariners regulars with the exception of Ichiro Suzuki.

The Mariners are, to put it mildly, offense-challenged. They've scored the second-fewest runs in the American League and have a miserable, league-worst OPS of .660. So how do you shelve one of your few productive hitters? The Mariners are already backed up at DH with Mike Sweeney and, when he's not in the field, Milton Bradley

Jack Wilson (pictured), acquired in a trade with Pittsburgh last July, is a defensive specialist and an average hitter for a shortstop, though he has underperformed at the plate since arriving in Seattle (.236). He does, however, have a two-year, $10 million contract, so sitting him regularly would be tough.

Manager Don Wakamatsu said on June 9 that Josh Wilson would keep the job when Jack Wilson returned, with Jack being worked in "when we see the need for it." Today he said both will get time at shortstop, depending on matchups, and Josh Wilson will get some additional time as a utility player. Should be an interesting juggling act for Wakamatsu.

Matt Tuiasosopo is being sent to Triple-A Tacoma to make room for Jack Wilson's return to the active roster.

-- David Andriesen For more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter.